公开(公告)号：US20220311521A1

公开(公告)日：2022-09-29

申请号：US17832233

申请日：2022-06-03

Applicant: Wi-Charge Ltd.

Inventor： Lior GOLAN ,  Alexander SLEPOY ,  Omer NAHMIAS ,  Ran SAGI ,  Ortal ALPERT ,  Ori Refael MOR

IPC: H04B10/80 ,  H02J50/60 ,  H01S3/00 ,  H01S3/042 ,  H01S3/09 ,  H01S3/13 ,  H01S3/16 ,  H01S5/00 ,  H01S5/024 ,  H01S5/042 ,  H01S5/0683 ,  H01S5/34 ,  H02J50/30

Abstract: A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.

公开(公告)号：US20180248411A1

公开(公告)日：2018-08-30

申请号：US15754656

申请日：2016-08-24

Applicant: WI-CHARGE LTD.

Inventor： Ran SAGI ,  Ori Refael MOR ,  Lior Golan ,  Omer Nahmias ,  Eitan Ronen ,  Ortal Alpert

IPC: H02J50/30 ,  H02J50/80 ,  H02J50/90 ,  H02J50/40 ,  H04B10/80

CPC classification number: H02J50/30 ,  H02J7/025 ,  H02J50/40 ,  H02J50/80 ,  H02J50/90 ,  H02J2007/0001 ,  H02J2007/0096 ,  H04B10/807

Abstract: A system for transmission of power into a space, comprising one or more transmitters and several portable receivers which can receive power transmitted. Receivers can transmit data back to transmitters regarding their power needs, based on the state of charge of their batteries. A transmission protocol exists whereby each transmitter can detect legitimate receivers within its field of view and transmit a first amount of energy to any such receiver, which may report receiving that energy back to a transmitter, together with data relating to its power needs. Transmitters can deny power transmission to some receivers based on the data received from a reporting receiver. The first amount of energy transmitted may be used to power up a sleeping receiver, before transmission of useful amounts of power, if allowed by the protocol. Other aspects of the transmission protocol relate to the division of available power between requesting receivers.

公开(公告)号：US20190132056A1

公开(公告)日：2019-05-02

申请号：US16084719

申请日：2017-03-14

Applicant: WI-CHARGE LTD.

Inventor： Lior GOLAN ,  Alexander SLEPOY ,  Omer NAHMIAS ,  Ran SAGI ,  Ortal ALPERT ,  Ori Refael MOR

IPC: H04B10/80 ,  H02J50/30 ,  H01S5/34 ,  H01S5/024 ,  H01S5/042 ,  H01S5/00 ,  H01S5/0683 ,  H01S3/16 ,  H01S3/042 ,  H01S3/09 ,  H01S3/00 ,  H01S3/13

Abstract: A system incorporating safety features, for optical power transmission to receivers, comprising an optical resonator having end reflectors and a gain medium, a driver supplying power to the gain medium, and controlling its small signal gain, a beam steering apparatus and a controller to control at least the beam steering apparatus and the driver. The controller responds to a safety risk occurring in the system, by outputting a command to change at least some of the small signal gain of the gain medium, the radiance of the optical beam, the power supplied by the driver, the scan speed or the scan direction and position of the beam steering apparatus, or to register the scan pose which defines the location of said optical-to-electrical power converter. The controller may also ensure a high overall radiance efficiency, and may warn of transmitted power not received by a targeted receiver.